Note: If you will actively switch between different versions of MXNet, please follow 2.4

cd python
sudo python setup.py install

2.4 For advanced users,
you may put your Python packge into ./external/mxnet/$(YOUR_MXNET_PACKAGE),
and modify MXNET_VERSION in ./experiments/deepim/cfgs/*.yaml to $(YOUR_MXNET_PACKAGE).
Thus you can switch among different versions of MXNet quickly.